A Framework for the Generation of Guaranteed Stable Small-Signal Bias-Dependent Behavioral Models

M. De Stefano, S. Grivet-Talocia, T. Bradde, A. Zanco
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引用次数: 3

Abstract

We present a numerical scheme for the identification of compact surrogate models of analog circuit blocks. The basic assumption is small signal operation, so that a local linearization can be applied around a given bias point, resulting in a bias-dependent linear state-space behavioral macromodel. The main novel contribution of this work is the ability to embed in the identification process a suitable set of constraints, that are able to guarantee the uniform stability of the model for any bias value within a prescribed design range.
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一个保证稳定的小信号偏差依赖行为模型的生成框架
我们提出了一种识别模拟电路块的紧凑替代模型的数值方案。基本假设是小信号操作,因此可以在给定偏置点周围应用局部线性化,从而产生与偏置相关的线性状态空间行为宏观模型。这项工作的主要新颖贡献是能够在识别过程中嵌入一组合适的约束,这些约束能够保证模型在规定的设计范围内的任何偏置值的均匀稳定性。
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